Movement Library

Welcome to our comprehensive Uplift Biomechanics documentation. Here you’ll find details about the movement analyses we support and descriptions of each event and metric.

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Instructions

This is the complete list of all activities, movements, events, and metrics for Uplift Biomechanical Assessments. Use these reference articles to determine which activities and movements Uplift supports, and what events and metrics are included in the specific analyses. Uplift refers to movements via both the general activity and specific movement (such as baseball-hitting, jump-countermovement, or track_and_field-discus). Within each activity-movement page, view the required input dimensions as well as all variables (events & metrics) to describe movement performance.

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Common Terms

• Session: A single captured movement or attempt, representing the core unit of data collection. These are tagged with a unique alphanumeric session_id. Sessions captured in a sequence (multiple reps or protocol) will have consecutive session_ids (ABC123_1, ABC123_2, …).
• Dimension: A labeling or categorization system for Sessions, Metrics, or Events, aiding in organization and filtering. Some dimensions are required for proper processing (such as Handedness: left)
• Activity: the general activity performed (baseball, jump, stability)
• Movement: the specific movement performed (pitching, countermovement, y_balance_lower_quarter)
• Event: A specific point in time within the single movement that marks a critical instant or boundary (ball release, jump landing, bottom)
• Phase: A distinct segment of the movement within a single session, generally bounded by specific events.
• Metric: A measured or calculated value that reflects some aspect of the athlete’s movement over the duration of the session
• Discrete Metric: A single, distilled value extracted from the time-series or raw data within a session, used for quick comparisons or reporting.

Note: For brevity, metrics and discrete metrics are often referred to as “Metrics”

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Free-Form Movement

Capture any motion! For best results, stay fully within all camera views and with only one person in view at a time. Select movement-activity: “other-other”. Uplift offers Generic Outputs for all movements, including: joint angles, joint velocities, 3D keypoints, and metadata.

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Sport-Specific Activities

Sport-specific biomechanical analysis includes event detection and custom metrics. Be sure to label movement class and handedness correctly! Capture 5-10 reps to get an accurate description of sport-specific biomechanics.

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Baseball

• Pitching
• Hitting

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Softball

• Hitting

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Tennis

• Overhand Serve

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Track & Field

• Discus
• Shot Put

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Golf

• Swing

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General Movement Activities

Movement assessments include general motions that can be indicators of ability, performance, or injury risk. It’s standard to capture in 2-3 reps and/or in a protocol with other movements.

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Agility

• 5-0-5

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Gait

• Running
• Walking

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Jump

• Countermovement Jump
• Single Leg Jump
• Squat Jump
• Drop Vertical Jump
• Broad Jump
• Single Leg Broad Jump

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Squat

• Bodyweight Squat
• Single Leg Squat
• Overhead Squat
• SFMA Squat

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Lunge

• Forward Lunge

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Stability

• Single Leg Stance
• SFMA Back Bend
• SFMA Toe Touch
• Y Balance - Lower Quarter
• Y Balance - Upper Quarter
• Plank

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Range Of Motion

• Ankle Flexion
• Cervical Flexion/Extension
• Cervical Rotation
• SFMA Shoulder Extension
• SFMA Shoulder Flexion
• Shoulder 9090 (Internal/External Rotation)
• Shoulder Flexion (and Extension)
• T-Spine Rotation

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Selective Functional Movement Assessment

The Selective Functional Movement Assessment (SFMA protocol) includes a wide variety of movements to identify any discomfort or pain from body motion.

• SFMA Back Bend
• SFMA Toe Touch
• SFMA Shoulder Extension
• SFMA Shoulder Flexion
• SFMA Squat